Surly MDS Vertical Dropouts Stock Item:Surly MDS Horizontal Dropouts Pair The X-SYNC™ 2 chainring provides

The X-SYNC™ 2 chainring provides significantly quieter performance

its packaging doesn’t always reveal what’s inside

Rubber enclosed water-resistant switch

Single-wall design we call Moto Technology

forged aluminum with sag gradients

Surly MDS Vertical Dropouts Stock Item:Surly MDS Horizontal Dropouts Pair The X-SYNC™ 2 chainring providesSURLY MDS VERTICAL DROPOUTS MDS Dropout Chips The 12mm slotted MDS dropout is the newest chip for our MDS equipped trail frames. You like chips, dont you? The 12mm slotted dropout chip uses a standard derailleur mount for maximum compatibility and is made of cast and machined 6061 T6 aluminum. Whats the coolest part about the 12mm slotted MDS chip, you ask? The fact that it also has the capability to run a 12 x 142mm thru axle in a single speed